Safety razor blade sharpener



Sept. 11, 1934. B, H SAVAGE 1,972,954

SAFETY RAZOR BLADE SHARPEER Filed Nov. 28, 1952 Bnventor 345/4 H Saz/46E (Ittorneg Patented Sept. 11, 1934 UNITED sTA'rEsf 1,912,954., y SAFETY RAZQRBLADE SHARPENER Basil H. savage, san Diego, Calif., assignor to Savage Research Calif.

Corporation, Sanv Diego,

Application November as, 193.2, serial No. 644,630v

11 claims. (01,. 51-111) My invention relates to safety razor blade,Y

Sharpeners, and the objects of my invention are:

First, to provide a device of this class which` is particularly compact, the enclosing case being*I but slightly larger in diameter than the length of a razor blade; Second, to provide a device of placed therein or removed without danger` A,to ones fingers; l

Third, to provide a device ofv this class in which the sharpening elements engage the blade with a wiping movement which is conducive to .obtaining a keen edge;

Fourth, to provide a device of this class which operates on both sides of each edge of the blade; Fifth, to provide a device of this class which is operated by the mere turning of a crank;

Sixth, to provide a device of this classwhich incorporates a cupped casing having a latch means so arranged as to be released by the turning handle for opening the casing, the turning handle being arranged to fold against the casing when not in use; v

Seventh, to provide a device of this class which may act upon blades of different thickness without adjustment;

Eighth, to provide a device of this class in which the honing or sharpening elements are shifted to a concealed or out of the way position clear of the razor blade edge when the turning handle is shifted to a position for opening the casing, thus protecting the razor blade from improper engagement with the hones; and

Ninth, to provide on the whole a novelly constructed safety razor blade Sharpener which Vis particularly simple and economical of manufacture, durable, efficient in its action, and which will not readily deteriorate or get out of order.y

With these and other objects in view as will appear hereinafter, my invention consists of ycer-- tain novel features of construction, combination and arrangement of parts and portions as will be hereinafter described in detail and particularly set forth in the appended claims, reference being had to the accompanying drawing and yto the` characters of reference thereon which form a part of this application, in which:

Figure 1 is a side elevational view razor blade Sharpener with the handle lshown in its folded position; Fig. 2 is a plan view thereof with the handle shown extended to its operating position; Fig. 3 is a plan view thereof with, the casing in its open position; Fig. 4 is a fragmentary sectional viewpthrough`4-4 of Fig.' 3 showthis class 4inV which the razor blade may be readily and quicklyl of my safety ing theshiftable razor blade clamping elements in its extended position assumed when the casing is open; Fig-.5is a sectional view through 5-f5.` of Fig. 2 with parts and portions shown in eleva-V tion; Fig. 6 is Ya sectional view through Fig. 2 with parts and portions shown in elevation; Fig.:7fis afragmentary sectionalview through '7 -7 of Fig. 5, also with parts and portions shownl in elevation; and Fig, 8. is an enlarged sectional view thrugh 87-8 of Fig. 6 showing indetailiiU the friction pin ,used to join the handle with the operating shaft. l

Similar characters ofY reference refer to similary parts andportions.throughout-the several views of (the, drawing. y 4

Casing members 1 and'Zfhinge means 3,*clip 4, razorblade clamp bars 5 and-6, screws `'7, driving Y shaftAS, handleQ, pin 10, driven shaft 11,` collars` 12 and 13, hone supporting springs 14 and 15, hones 16, and coil spring 17, constitute the principal. parts and portions of my novel safety razor blade Sharpener.

The Sharpener is enclosed in a pair Ofcomplementary casing members ll and V2 which are preferably cup-shaped, relativelyshallow, and polygonal in plan so as to provide a ready grip, particularly when ones hands are wet.

The two casing members are connected together by hinge means 3 Vat their one sides, and by a claspmeansat their opposite sides. The claspl meanspismounted in alined recesses or channels la andZa whichV together traverse the edge. of theclosed case formed by the casing members 1 and 2, respectively, as shown best in Figs. 2 and 6. The recess 1a is provided at the 90` innervside'of its base wall or inner wall with a catch portion 1b. The corresponding wall of the recess 2a supports a spring clip or latch member 4which extends downwardly or rather towards the casing 1 so as to engage the catch 1b 95 when the twocasings are brought into juxtaposition, as shown in Fig.6. The clip 4 *is provided with, a knob 4a which protrudes into the reces/s Za and is adapted to be engaged by the operating handle, as will be described hereinafter. l

,Y Extending diametrically across the two casngs 1 and V2 inV parallel relation with the 'axis of the hinge 3 .are a pair of clamp bars 5 and 6 which are adapted to register with each other. The clamp/bar 5 is provided with end portions which are'offset into the casing 1 and are secured thereto bymeans of screws 7. The intermediateportion of ,the clamp bar 5 extends substantially flush with the edge of the casing 1, and is provided 119 as shown in Figs. 3 and 5.

bar 6 is provided with apertures 6a which regis-'- ter with lugs 5a and receive their extremities,

The clamp bar 5 is provided withfa centrally disposed bearing 5b which extends-axially into.

the casing 1. The bearing 5b receives a driving shaft 8 which extends through abearing 1c provided in the crown of the casing 1.' The protrud ing end of the driving shaft 8 pivotally supports an arm 9a of a handle member 9. The connection between the shaft 8 and the arm 9a is ef-y fected by `a pin 10 which is split yorotherwise formed toprovide frictional resistance to Vpivotal vaction of the varm 9a so that said arm tends to maintain any position to whichit is moved. The arm 9a is curved so as to follow the curvature ofthe casing 1 Vwhen in its one extreme position asshown in Fig.` lfandby dottedlines in Fig. 6( X The extremity lof the arm 9a is Vprovided with av Aknob '9b whichv is adapted to-t into the recesses 1a and 2a,A as V'shown best byfthe dottedlineposition of the handle indicated in Fig'. 6. A portion of thek-nob 9brests against the vpinl or projection 4a'of the-c1ip4 so that inward pressure upon the arm 9c or knob 9b causesv the 'clip 4 to disengage the catch 1b? f Theinner end offt-heshaft v8 terminates in a semi-cylindricallug 8a which registers with a corresponding'lug 11erl :of a driven shaft 11,- the l' two lugs forming-a clutch mechanism forcon necting the driving shaft 8 with the driven shaft 11. The driven shaft 11 extends through an 'axially disposed sleeve 6b formedin the shiftable clamp bar 6,' and into abearing y2c formed in theoasing 2. The sleeve 6b is constricted at its secured end so -as to coact with a ange- 11b surround-' ing the shaft 11, as shown best in Figs. 4 and 5,-and limit inward movement of the shaft.

-The extremities of the bearing 5b and the sleeve 6b are spaced from the corresponding bearings 1c and 2c,` in whichspaces are mounted c ol'- lars 12 and 13,'respectively. The collars 12 and 13 rotate with their respective shaftasa'd shafts being 'attcned at `opposite sides and the col-` Y' lars being correspondingly formed.

l The collars 12 and 13 support leaf springs 14 and 15, respectively. The springs extend at first radiallyan'd curve to ,conformV to the crowns of the v casing'members, then'do'uble against themselves forming open loo-ps and extend radially linwardly towards the axis ofthe shafts 8 and v11 and are apertured as V'indicated by Maand 15a, respec` tively, so as to surround said shafts, then again extend radially andterminatein clip portions 14h and15b, respectively, asshownV best inI Fig. 6.

The clips 1419 and 15b support cylindrical hone membersl, the exposed sides of which face towardsthe central portion ofthe casing so as to Y engage opposite sides ofthe razor blade as shown -best in Fig. 6`. y

Between the collar13 and the ange 11b within the Asleeve 6b therejis4 mounted'acoil-spring 17.

The'spring 17"by action against thel iiange 11b tends to holdth'e clampl bar 6iny its extended position against' the'heads of the'screws 7, 'as

axially against the action of the spring 17 and remains disengagedrfrom the shaft 8 until the handle 9 `is turned sufficiently to bring the said lugsinto, registration, -whereupon the shaft 11 snaps into interlocking relation with the shaft 8 and the two may be turned in unison.

In order to restrain the action of the springs 14 and 15 when there'is no razor blade in the fSharpener, the outer peripheries of the bearing 5b and sleeve 6b are provided with shoulders 5c and 6c, respectively, which engage the margins of the apertures 14a and 15a, respectively. The shoulders 5c and 6c are provided with cam portions 5d and 6d, respectively, which engage themargins of the apertures 14a and 15a as the hones-fpass across the clamp members so asto'depress theY springs and cause said honesto clear said clamp members, as shown by dotted lines in Fig. 5.

The Sharpener is operated as follows: The casing is opened as shown in Fig. 3 and the razor blade is-positioned on the clamp member 5. The'casings are then closedfand the handle 9 turned until the shafts' and 11E are connectedg'whereupon continued rotation of the handle lli-'causes the hones to rotate and inasmuoh'as the springs 14 and 15 tend to force the honestowards reach other tney'engage the edges of the razor blades andas they rotate wipe the edges'with a circular move-Y produce anextremely keen ment that tends to edge. Y

Though I have shown-and described a particular A construction, combination l and l arrangement of' parts and portions, I do not wish to be limited to this particular construction, combination and arrangement, but desire to include in the-scopeof my invention the construction, combination and arrangement substantially as set forth inthe ap`- pended claims. f

Having thus describedA my invention, what I claim as new and desire to secure byy Letters jj Patent is: v

l'. In a safety razor blade Sharpener, a pair vof complementary casing members, clamp elements carried thereby arranged to secure al razor blade, sharpening 'elements rotatably mounted within said casing members at oppositesides lof said razor blade and clamp elements, said sharpening elements being disposedabouta commonV axis traversing thek center of1 the razor bladeand en'- gageable with the edgesl vof said razor bladeand handle means connected with said sharpening elements for rotating the same and extending 'from one of said casing members. y 2. In a safety razor bladeisharpener, a pair ofl clamp elements arranged to securela razor blade therebetween, a pair 'of revolub'leV sharpening e1e` ments arranged at *opposite sides of saidA razor blade and clamp: elements', said sharpening elements being disposed about a common axis traversing the center of the 'razor blade andengage'- able with the edges ofV said razor blade, a casing enclosing said clamps, razor blade and sharpening elements and means'for actuating said. sharpening elements. Y

" 3.A Ina safety razor' blade'u'sharpen'er, a pair of "I l' A. 5U

clamp elements arranged to secure a razor blade therebetween, a pair of revoluble sharpening elements arranged at opposite sides of said razor blade and clamp elements, said sharpening elements being disposed about a common axis traversing the center of the razor blade and engageable with the edges of said razor blade, a casing enclosing said clamps, razor blade and sharpening element, shaft means carried by said casing and clamps for revolubly supporting said sharpening elements, and a handle therefor protruding from said casing for actuating the shafts and sharpening elements.

4. In a safety razor blade Sharpener, a pair of clamp elements arranged to secure a razor blade therebetween, a pair of revoluble sharpening elements arranged to engage the edges of said razor blade but having a position clear thereof, a split casing enclosing said clamps, razor and sharpening elements, a clasp for securing the casing in a closed position, a handle for rotating said sharpening elements, said handle engageable with said release clasp to release the Same when said sharpening elements are clear of said razor blade.

5. In a safety razor blade Sharpener, a pair of complementary casing members, a pair of clamp elements carried thereby arranged to receive a razor blade, coacting severable shafts supported by each of said casing members and its clamp element, rotatable sharpening elements supported from said shafts within each of said casing members and engageable with the edges of a razor blade held by said clamp elements, and means for rotating the shafts and sharpening elements.

6. In a safety razor blade Sharpener, a pair of complementary casing members, a pair of clamp elements carried thereby arranged to receive a razor blade, coacting severable shafts supported by each of Said casing members and its clamp element, means for operating said shafts, a spring arm connected to each shaft within the corresponding casing, and a hone mounted at the extended end of each spring arm and engageable with the edges of a razor blade held by said clamp elements upon operation of said shafts.

'7. In a safety razor blade Sharpener, a pair of complementary casing members, hinge and clasp means joining said casing members, a movable clamp element carried by one casing member, a fixed clamp element carried by the other casing member, coacting shafts journaled in said casing and separable with said clamp elements, sharpening members connected with said shafts and engageable upon rotation of said shafts with the edges of a razor blade held by said clamp elements and means for rotating Vsaid shafts and sharpening members.

8. In a safety razor blade Sharpener, a pair of complementary casing members, hinge and clasp means joining said easing members, a'movable clamp element carried by one casing member, a fixed clamp element carried by the other casing member, coacting shafts journaled in said casing and separable With said clamp elements, means for rotating said shafts, a spring arm oonnected with each shaft within the corresponding casing, and a hone supported at the extremity of each spring arm arranged to engage the edges of a razor blade held by said clamp elements upon rotation of said shafts.

9. In a safety razor blade Sharpener, a pair of cupped complementary casing members, hinge and clasp means joining Said casing members, razor blade clamp bars bridging the open or contiguous sides of said casing members, adapted to receive a razor blade, a shaft carried by each clamp bar and its casing member, clutch means joining said shafts when said casing members are in complementary relation, sharpening members supported from said shafts and arranged to engage the edges of a razor blade held by said clamp bars and means for operating said shafts and sharpening members.

10. In a Safety razor blade Sharpener, a pair of cupped complementary easing members, hinge and clasp means joining Said casing members, razor blade clamp bars bridging the open or contiguous sides of said casing members, adapted to receive a razor blade, a shaft carried by each clamp bar and its casing member, clutch means joining said shafts when said casing members are in complementary relation, a spring arm joined to each shaft, a hone mounted at the extremity of each spring arm arranged to engage the edges of a razor blade` held by said clamp bars and means for rotating the shafts and hones.

11. In a safety razor blade Sharpener, a pair of cupped complementary casing members, hinge and clasp means joining said casing members, razor blade clamp bars bridging the open or contiguous sides of said casing members, adapted to receive a razor blade, a shaft carried by each clamp bar and its casing member, clutch means joining said shafts when said casing members are in complementary relation, one of said clamp bars and its shaft being axially shiftable, yieldable means tending to hold the same in an extended relation with their casing, whereby said clamp bar may give to accommodate a razor blade positioned on the other clamp bar and whereby said clutchmeans tends to occupy an interlocking condition, sharpening members supported from said shafts and arranged to engage the edges of a razor blade held by said clamp bars and means for operating said shafts and sharpening members.

BASIL H. SAVAGE. 

